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Responses of Hail and Storm Days to Climate Change in the Tibetan Plateau

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Authors
Zou, Tian
Zhang, Qinghong
Li, WENHONG
Li, Jihong
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Abstract
There is increasing concern that local severe storm occurrence may be changing as a result of climate change. The Tibetan Plateau (TP), as one of the world’s most sensitive areas to climate change, became significantly warmer during recent decades. Since 1960 (1980), storm (hail) days have been decreasing by 6.2%/decade (18.3%/decade) in the region. However, what cause the frequency changes of storm and hail in the TP is largely unknown. Based on 53-year continuous weather records at 48 TP stations and reanalysis data, we show here for the first time that the consistent decline of storm days is strongly related to a drier mid-troposphere since 1960. Further analysis demonstrated that fewer hail days are driven by an elevation of the melting level (thermodynamically) and a weaker wind shear (dynamically) in a warming climate. These results imply that less storm and hail may occur over TP when climate warms.
Type
Journal article
Subject
storm days
hail days
Tibetan Plateau
thermodynamic conditions
dynamic conditions
Permalink
https://hdl.handle.net/10161/16718
Published Version (Please cite this version)
10.1029/2018GL077069
Publication Info
Zou, Tian; Zhang, Qinghong; Li, WENHONG; & Li, Jihong (n.d.). Responses of Hail and Storm Days to Climate Change in the Tibetan Plateau. Geophysical Research Letters. 10.1029/2018GL077069. Retrieved from https://hdl.handle.net/10161/16718.
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Scholars@Duke

Li

Wenhong Li

Associate Professor of Climate
Dr. Li's research interests focus primarily on climate dynamics, land-atmosphere interaction, hydroclimatology, and climate modeling. Her current research is to understand how the hydrological cycle changes in the current and future climate and their impacts on the ecosystems, subtropical high variability and change, unforced global temperature variability, and climate and health issues.
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